- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄368731 > 16F628 (Microchip Technology Inc.) CAT 5E CROSSOVER PATCH CORD CABLE BLUE 1 FT PDF資料下載
參數(shù)資料
| 型號(hào)： | 16F628 |
| 廠(chǎng)商： | Microchip Technology Inc. |
| 英文描述： | CAT 5E CROSSOVER PATCH CORD CABLE BLUE 1 FT |
| 中文描述： | 基于閃存的8位CMOS微控制器 |
| 文件頁(yè)數(shù)： | 111/168頁(yè) |
| 文件大?。?/td> | 3760K |
| 代理商： | 16F628 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)當(dāng)前第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)第158頁(yè)第159頁(yè)第160頁(yè)第161頁(yè)第162頁(yè)第163頁(yè)第164頁(yè)第165頁(yè)第166頁(yè)第167頁(yè)第168頁(yè)
2002 Microchip Technology Inc.
Preliminary
DS40044A-page 109
PIC16F627A/628A/648A
14.11 In-Circuit Serial Programming
The PIC16F627A/628A/648A microcontrollers can be
serially programmed while in the end application circuit.
This is simply done with two lines for clock and data,
and three other lines for power, ground, and the pro-
gramming voltage. This allows customers to manufac-
ture boards with unprogrammed devices and then
program the microcontroller just before shipping the
product. This also allows the most recent firmware, or
a custom firmware to be programmed.
The device is placed into a Program/Verify mode by
holding the RB6 and RB7 pins low while raising the
MCLR (V
PP
) pin from V
IL
to V
IHH
(see programming
specification). RB6 becomes the programming clock
and RB7 becomes the programming data. Both RB6
and RB7 are Schmitt Trigger inputs in this mode.
After RESET, to place the device into Programming/
Verify mode, the program counter (PC) is at location
00h. A 6-bit command is then supplied to the device.
Depending on the command, 14 bits of program data
are then supplied to or from the device, depending if
the command was a load or a read. For complete
details of serial programming, please refer to the Pro-
gramming Specifications (DS41196).
A typical In-Circuit Serial Programming connection is
shown in Figure 14-18.
FIGURE 14-18:
TYPICAL IN-CIRCUIT
SERIAL PROGRAMMING
CONNECTION
14.12 Low Voltage Programming
The LVP bit of the configuration word, enables the low
voltage programming. This mode allows the microcon-
troller to be programmed via ICSP using only a 5V
source. This mode removes the requirement of V
IHH
to
be placed on the MCLR pin. The LVP bit is normally
erased to '1' which enables the low voltage program-
ming. In this mode, the RB4/PGM pin is dedicated to
the programming function and ceases to be a general
purpose I/O pin. The device will enter Programming
mode when a '1' is placed on the RB4/PGM pin. The
HV Programming mode is still available by placing V
IHH
on the MCLR pin.
If Low-voltage Programming mode is not used, the LVP
bit should be programmed to a '0' so that RB4/PGM
becomes a digital I/O pin. To program the device, V
IHH
must be placed onto MCLR during programming. The
LVP bit may only be programmed when programming
is entered with V
IHH
on MCLR. The LVP bit cannot be
programmed when programming is entered with RB4/
PGM.
It should be noted, that once the LVP bit is programmed
to 0, only high voltage Programming mode can be used
to program the device.
External
Connector
Signals
To Normal
Connections
To Normal
Connections
PIC16F627A/628A/648A
V
DD
V
SS
RA5/MCLR/V
PP
RB6/PGC
RB7/PGD
+5V
0V
V
PP
CLK
Data I/O
V
DD
Note 1:
While in this mode the RB4 pin can no
longer be used as a general purpose I/O
pin.
2:
V
DD
must be 5.0V +10% during erase
operations.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 16M0 | PC SERIAL MODEM CBL 50 FT |
| 16M0B | APPLE IIC CABLE TO IWRTR MODEM |
| 16M0BC | KEYBD.EXT. MINI DIN 4 MM 6 FT |
| 16M0BS | KEYBD.EXT. MINI DIN 4 MM 10 FT |
| 16M0D | MINI DIN 8, MALE-MALE 10 FT. |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 16F630 | 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:14-Pin FLASH-Based 8-Bit CMOS Microcontrollers |
| 16F684-I | 制造商:Microchip Technology Inc 功能描述: |
| 16F6H | 制造商:EDAL 制造商全稱(chēng):EDAL 功能描述:Silicon High Voltage Assembly |
| 16F6H1 | 制造商:EDAL 制造商全稱(chēng):EDAL 功能描述:Silicon High Voltage Assembly |
| 16F7674 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:SMD TWEEZER HEAD |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。